Advanced Search

Thomas Richard

Mr. Thomas Richard

3255 Reputation

13 Badges

15 years, 194 days
Maplesoft Europe GmbH
Technical professional in industry or government
Aachen, North Rhine-Westphalia, Germany
Contact Thomas Richard

MaplePrimes Activity


These are replies submitted by Thomas Richard

Please clarify...

Thomas Richard 3255
September 06 2006
It's not clear to me how theta and the other variables are related. Is theta supposed to be a function of r, R and phi? And if you replace the derivatives with divided differences, we would need to know theta_0, phi_0 etc. Furthermore, I don't know Broyden's method, but maybe someone else does.

Please post your equations...

Thomas Richard 3255
September 05 2006
Please post your equations so that we can take a look at it. Do you need exact or numeric solutions?

method=CrankNicholson...

Thomas Richard 3255
August 28 2006
Did you try the method=CrankNicholson option to pdsolve/numeric? It's explained in ?pdsolve,numeric,pdemethods An example (along with other optiosns) is provided in ?pdsolve,numeric,education

Extended typesetting level and Settings(...

Thomas Richard 3255
August 25 2006
The dot should be used automatically in extended typesetting level. Check the current state in Tools > Options > Display or via interface(typesetting). (I am not sure which level is the default.) If you have toggled typesetting to extended, and the dot is still not displayed, check the following: with(Typesetting): Settings(usedot); Please see ?Settings for more info.

AFAIK no...

Thomas Richard 3255
August 18 2006
0 0
No, to my knowledge, it is not possible to install serveral minor versions of libc6 aka glibc2. What one can do is install different main versions of the C library on Linux, i.e. libc6 (for Maple 6 and newer) libc5 (for Maple V Releases 4 - 5.1) libc4 (for Maple V Release 3, a.out binary format) to run these versions. But that's besides the point. Retro-computing, in fact. ;-)

AFAIK no...

Thomas Richard 3255
August 18 2006
No, to my knowledge, it is not possible to install serveral minor versions of libc6 aka glibc2. What one can do is install different main versions of the C library on Linux, i.e. libc6 (for Maple 6 and newer) libc5 (for Maple V Releases 4 - 5.1) libc4 (for Maple V Release 3, a.out binary format) to run these versions. But that's besides the point. Retro-computing, in fact. ;-)

Downgrading glibc? I've...

Thomas Richard 3255
August 18 2006
0 0
Downgrading glibc? I've never tried, but I would expect problems. Note that the 2.4 output says "development release". Please ask in the Fedora forum or mailing list before trying.

Downgrading glibc? I've...

Thomas Richard 3255
August 18 2006
Downgrading glibc? I've never tried, but I would expect problems. Note that the 2.4 output says "development release". Please ask in the Fedora forum or mailing list before trying.

F1 vs F2...

Thomas Richard 3255
August 02 2006
0 0
I'm afraid Axel Vogt is still running Windows ME, where only Classic Worksheet is available. Hence F1 is his command help key. This inconsistency between the two GUIs has been reported by other users, too.

F1 vs F2...

Thomas Richard 3255
August 02 2006
I'm afraid Axel Vogt is still running Windows ME, where only Classic Worksheet is available. Hence F1 is his command help key. This inconsistency between the two GUIs has been reported by other users, too.

Me too :-)...

Thomas Richard 3255
August 02 2006
I also find most of the discussion pages loading extremely slow (currently up to 20 seconds). We briefly talked about that at MC 2006. When I logged in earlier today, I had to wait several minutes for the start page. This seems to be non-reproducible now. Other sites (including maplesoft.com main pages) load as fast as usual. Location: Aachen, Germany.

What was installed?...

Thomas Richard 3255
August 01 2006
So you entered /home/dehein/maple10 as the target directory? Is there a Maple_10_InstallLog.log file that might hint at the problem? Were there any other files and/or directories (besides bin) created in the target directory? I assume you have enough free space on your hard disk / partition. Maple 10 needs about 450 MB.

Can't reproduce that problem...

Thomas Richard 3255
July 17 2006
0 0
No such trouble on my Mac (and I applied all the upgrades). The directory you mention is the correct one. For this package, you need Optimization.mla, Optimization.hdb and Optimizationexamples.hdb there. Please also check the Maple_10.0x_Macintosh_Upgrade_InstallLog.log files in the /Applications folder.

Can't reproduce that problem...

Thomas Richard 3255
July 17 2006
No such trouble on my Mac (and I applied all the upgrades). The directory you mention is the correct one. For this package, you need Optimization.mla, Optimization.hdb and Optimizationexamples.hdb there. Please also check the Maple_10.0x_Macintosh_Upgrade_InstallLog.log files in the /Applications folder.

Writing results to file...

Thomas Richard 3255
July 07 2006
0 0
The question is whether one can do something useful with the result if it's so big that Maple has trouble displaying it. But that's up to you. :-) Here's how you can write it to a file: CodeGeneration[Matlab](y,output="C:/Temp/file1.txt"); or fprintf("C:/Temp/file2.txt","%a\n",y); For fprintf, you might need to append an fclose or fflush command to actually get the file written to disk. My remark about write was nonsense - sorry.
First 34 35 36 37 38 39 40 Page 36 of 40